Ru/graphene hybrid film catalyst for NaBH4 hydrolysis reaction

被引：19
作者：
Megersa, Daba Deme [1 ,2 ]
Kim, Youngho [1 ,2 ]
Kim, Noeul [1 ,2 ]
Lee, Jaeyeong [3 ]
Bae, Jong Seong [3 ]
Choi, Jae-Young [4 ,5 ]
Yu, Hak Ki [1 ,2 ]
机构：
[1] Ajou Univ, Dept Energy Syst Res, Suwon 16499, South Korea
[2] Ajou Univ, Dept Mat Sci & Engn, Suwon 16499, South Korea
[3] Korea Basic Sci Inst, Busan Ctr, Busan 46742, South Korea
[4] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 16419, South Korea
[5] Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Suwon 16419, South Korea
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 35期
关键词：
NaBH; 4; Ru catalyst; Graphene; Dehydrogenation; CHEMICAL-VAPOR-DEPOSITION; SODIUM-BOROHYDRIDE NABH4; RU THIN-FILMS; HYDROGEN GENERATION; RUTHENIUM; GRAPHENE; KINETICS; SURFACE; SHELL;
D O I：
10.1016/j.ijhydene.2022.03.044
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, a thermal release tape-supported Ru on graphene film (Ru/G/TRT) was proposed as a catalyst for the dehydrogenation of sodium borohydride (NaBH4). A 200-nmthick Ru film deposited on the C-plane of sapphire by physical vapor deposition was used for the synthesis of graphene via chemical vapor deposition. X-ray diffraction analysis revealed the polycrystalline nature of the thin films. Furthermore, Raman spectroscopy and scanning electron microscopy revealed the successful synthesis of graphene. Thus, the prepared Ru graphene (Ru/G) structure was covered with TRT, while simultaneous etching resulted in a Ru/G/TRT structure. The water displacement method was employed to evaluate the catalytic performance of the proposed structure, which was found to highly improve with respect to the etched Ru/G structure, with maintenance of stability after repeated use. Finally, surface study by X-ray photoelectron spectroscopy revealed the presence of metallic Ru on both Ru/G and Ru/G/TRT surfaces after repeated use, which further confirmed the stability of the structure. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：15687 / 15694
页数：8
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